Introduction The combination of antigens (Ag) and antibodies (Abs) occur specifically and in observable manner. There is various usefulness of this type of reaction. Some of them are: A basis for the formation of antibody mediated immunity Helps generally during the cases of infectious diseases. Besides, in tissue injury related to some types of hypersensitivity … Read more
It is the abbreviated form of Enzyme-linked immunosorbent assay or EIA. It is similar in principle to Radio immune assay (RIA) but instead of radioactive substance it uses an enzyme. Chromogenic substrate is generated by reacting an enzyme conjugated with the antibody and a colorless substrate. Chromogenic substrate is a colored reaction product. Various enzymes … Read more
Immunoglobulins are specialized serum proteins which are produced in response to an antigen and react with that antigen specifically. It may also react with the very closely related antigen as well. They are found in various secretions of body and some are fixed to body cells or tissues in addition to humoral antibodies. They are … Read more
INTRODUCTION OF VACCINE Vaccine is a liquid chemical substance, which is used to stimulate an immune response in the body. It contains modified, inactivated or killed pathogens or their antigens. It is administered orally or injected in the body to stimulate the active immunity. Immunity is defined as the ability of a body to resist … Read more
Biotechnology is the controlled use of biological agents such as microorganism or cellular components for beneficial use. It is comparatively a new discipline of science in which the latest technology has been applied to biological organisms for human welfare. The recent progress in biotechnology is due to understanding and application of principles of molecular biology, … Read more